Valved coupling.



C. A. KUNZ VALVED GOUPLING. APPLICATION FILED 13110.15. 1913.

945. Patented NW3, 1914.

Inventor Attorneys Hl' NONR/s PTERS Co.. PHUTOYLITH WASHING roN n c CHARLES A. Kunz, or DUBUQUE, Iowa'.

vALvED coUrLrNG.

Specification of Letters Patent.

Application filed December 15, 1913. kSerial No. 806,857.

T0 all whom t may concern Be it known that I, CHARLES A. Kunz, a

citizen of the United' States, residing at Du-y buque, in the county of Dubuque and State of Iowa, have invented a new and useful Valvcd Coupling, of which the following is a specification.

The present invention appertains to a hose coupling, and aims primarily to provide a coupling of that character, embodying a valve arranged to be closed when the cou pling is opened or the members thereof de-k tached. K

It is the object of the present invention to provide a coupling of the nature indi-` cated, embodying two members or sectionsv adapted to be readilyattached and detached, in combination with a unique and novel valve disposed within one .ofv the membersy to close the passage therethrough when the coupling members are detached, and means carried by the other coupling member for forcibly opening the valve when the two coupling members are attached.

i A further objecty of the present invention is to provide a valve of the nature stated, and a valve opening member, which may be readily applied withinv the coupling mem bers, so as to coperate when the valve members are attached. f

It is also within the scope of the present invention to provide a coupling of the character specified, which shall be comparatively simple, substantial, durable and inexpensive in construction, as well as being simple, convenient, practical and efficient inits use. With the foregoing general objects outlined, and with the other objects in view, which will be apparent as the nature of the invention is better understood, the present invention resides in the combination and arrangement of parts and in the details of; construction hereinafter described andv claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of theinvention. y

The invention hasbeen illustrated kin its preferred embodiment in the accompanying drawings, wherein Figure l is a side elevation of the"improved coupling with the membersthereof attached. Fig. 2 is a longitudinal sectionl through the couplingvwith the members attached. Fig. Sis a view similar toFig. 2;

4 isan end view of one of the coupling members. Fig. 5 is an end view of the other coupling member. Fig. 6 is a fragmental elevation of one coupling member illustraty ing a slight modification or variation.' n

. The present coupling embodies the female and malemembers or sections l and 2, respectively, which are cylindricalyor of` circular cross section, as usual. y,The remote Patented N ov. 3, 1914. with the coupling members detached. Fig.

ends of the members l and 2 vare provided f with the hose attaching nipples 3, while the adjoining or meeting ends of the coupling members are provided with the lug 4 and bayonet slot 5, respectively, for locking the ends of thecoupling members together, as

will beapparent. The end of the coupling member 2 `is arranged to be slipped or slid into the end or mouth of the coupling inember l, the lug 4 engaging within the bayonet slot 5` tofhold the coupling members in en' gage-ment. The coupling members may be of any preferred construction or formation consistent with thestructure hereinafter described.

ln carrying'outthe present invention, an'

elliptical butterfly valve 6 is pivoted within the couplingmember 2, a pivot pin 7 being passed loosely through the cent-ral kportion of the valve 6, and having its terminals ene gaging through diametrically opposite `porf tions of the coupling member 2 intermediate theends of thecoupling member. The lperiphery of the valve 6 isso formed, as to snugly fit tliewalls of the coupling memberv 2, when the valve is swung closed, the valve l' being disposed diagonally, when closed,as seen in Fig. 3. y.That face ofthel valve 6l facing the inner end or mouth of the coupling member 2, is provided with a lugv 8 adjoining the inner end of they valve, and a' coiled f wire compression spring 9 is disof the coupling member, within the mout-h oru inner end of the coupling member, the

with fingers or projections 10 engaginL withinthe4 ends or endmost convolutions o the spring to maintainthe spring in operative position; As will be obvious, the tension ofthe spring9 serves to close the valve y 4when the valve is free. `The lug Sis provided with tlie bevel 1l extending to the end of the valve, whereby the valve will bel y'posed between the lug 8 andfopposite wall iio forcibly opened when the coupling members are attached, as will hereinafter appear.

A ring or annulus 12 is secured within the coupling member 1, by means of rivets or other securing means 13, and is provided with an inwardly projecting, transversely curved tongue 14, having its end beveled, as at 15, whereby the tongue is in the form oit a wedge. The tongue or wedge 14 is ladapted to it snugly within the coupling member 2, when the two coupling members are detached the valve 6 will be closed, un.

der the influence of the spring 9, the coupling member 2 being attached to that hose section which is connected to a source of compressed air, or other pressure fluid. In this manner, when the coupling members are separated, the valve will be closed to pre ventv the discharge or escape of pressurefluid, the advantages of which are obvious.`

`When the coupling members 1 and 2 are attached, the tongue or wedge 14 will encounter the bevel 11 of the lug 8, and consequently, the inner end of the valve will be wedged away from theadj oining wall of the coupling member 2, toward 4the coupling member 1 and against tension of the spring 9, whereby the valve will be Opened, as illustrated in Fig. 2, to permit of the passage et the compressed air or other pressureuid through the coupling. rEhe tongue or wedge 14 being curved similar to the curvature of the walls oit' the coupling members, will permit o f the slight rotary movements of thev coupling members relative to each other,y

when they are coupled and uncoupled, without aiiecting the relation of the valve and the valve opening means.

As illustrated in Fig. 6, the couplingmember 1 isprovided with a reduced nipple- 3" for the attachment of an air or riveting gun, or reamer.

riveting gun, or other device, is detached from the hose.

From the foregoing, the advantages and capabilities et the present device will be apparent to those skilled in the art, it being observed that the. objects aimed at have been carried out satisfactorily, and that ther rlhus, the air or riveting gun, or other fluid pressure implement, may be conveniently attached tov and detached from the coupling member 2, without any' escape of compressedair, when the air orpresentV valve lis stemless and threadless, which is highly desirable.

Having thus described the invention, what is claimed as new is 1. A coupling embodying two attachable members, a pivoted valve within one member and arranged to close the same when in a diagonal position, and a wedge carried by the other member and arranged to be wedged between one end of the valve and the wall of the iirst mentioned coupling member to swing the said end of the valve away from the said wall and. toward the coupling member having the wedge, when the coupling members are attached.

2. A coupling embodying two attachable members, a butterfly valve pivoted within one coupling member and arranged to close the same when in a diagonal position, and a wedge carried by the other coupling member for wedging between one end of the valve and the wall of the irst mentioned coupling member to swing the said end of the valve away from the said wall and toward the coupling member having the wedge, when the coupling members are attached.

3. A coupling embodying two attachable members, a pivoted butterfly valve within one coupling member and arranged to close the passage therethrough when in a diagonal position, a compression spring between one end of the valve and the opposite wall of the said coupling member, and means carried by the other coupling member for swinging the valve open when the coupling members are attached.

4. A coupling embodying two attachable members, a pivoted butterfly valve within one coupling member and arranged to close the passage therethrough when in a diagonal position, a compression spring between one end of the valve and the opposite wall of the said coupling member, and a projection carried by the other coupling member for engaging one end of the valve to open the same when the coupling members are attached.

. 5. A coupling embodying two attachable members, a pivoted butterfly valve within one coupling member and arranged to close the passage therethrough when in a diagonal position, a compression spring between one end of the valve and the opposite wall of the coupling member, and a wedge carried by the other coupling member to wedge between one end of the valve and the wall of the rst mentioned coupling member whenk the coupling members are attached, to open the valve.

y 6. A coupling embodying two attachable members, a pivoted butteriiy valve within one coupling member to close the same, one end of the valve having a beveled lug, and a member attached within the other coupling member and having1 a projecting wedge to engage between t e said beveled lug and the wall of the first mentioned coupling member, when the coupling members are attached.

7 A coupling embodying two attachable members, a pivoted butterfly valve within one coupling member to close the same, one end of the valve having a beveled lug, a collar attached within the other coupling member and having projecting wedge to engage between the said beveled lug and the wall of the first mentioned coupling member, when the coupling members are attached, and a compression spring `disposed between the said lug and the opposite wall of the first mentioned coupling member.

8. A coupling embodying two attachable members, a pivoted butterfly valve within one coupling member to close the same and having a beveled lug at one end, and a ring secured within the other coupling member, and having a projecting transversely curved wedge to engage between the said beveled lug and the wall of the first mentioned coupling member, when the coupling members having a beveled lug at one end, and a vring,

secured within the other coupling member, and having a projecting transversely curved wedge to engage between the said beveled lug and the wall of the first mentioned coupling member, when the coupling members are attached, and a coiled wire compression spring disposed between the said lug and the opposite wall of the iirst mentioned coupling member. l

In testimony that I claim the foregoing as my own, I have hereto aixed `my signature in the presence of two witnesses.

CHARLES A. KUNZ.

Witnesses A. KATH, M. DEMPSEY.

Copies of this patent may be obtained for iive cents each, by yaddressing' the Commissioner of Patents,

i Washington, D. C. 

